/Engine/Source/Runtime/Core/Public/IO/IoDispatcher.h
void Append ( const [FIoChunkId](API\Runtime\Core\IO\FIoChunkId) & ChunkId, [IIoStoreWriteRequest](API\Runtime\Core\IO\IIoStoreWriteRequest) * Request, const [FIoWriteOptions](API\Runtime\Core\IO\FIoWriteOptions) & WriteOptions )